So within 5 hours overnight I had a 3"+ discus disappear from my tank. I checked everywhere possible and the entire room and cannot in him anywhere. I know he did not get consumed by others or get into the filtration because I have a mesh/floss prefilter for shrimp and platy fry protection. Another odd thing is that I found a bala dead, a guppy dead, a 1" discus dead as well overnight. All water tests were fine, and I ran them twice to be sure. co2
has been manually operated for the last week since the solenoid quit working and was turned off as usual at 6pm yesterday on the regulator regulator and tank to prevent any leaks. All fish were in the tank and doing fine at 1am but at 6am there was a mass death and a missing fish. My cats are never out at night to protect the fish from them, so where in the heck could he have gone? The only place I didn't look is under the substrate.... has anybody ever heard of discus burrowing into substrate and think this is worth a shot to check? I am going to run home on my lunch to look some more to see if I can figure out what happened to the discus, but right now the only explanation is aliens, but my wife doesn't agree lol. The other discus are fine, as are all other fish. So I am just confused as to why the others died and one large fish is missing. Any past expirence with something like this would be appreciated.
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